* {
  padding: 0;
  margin: 0;
}
body {
  background-color: rgba(0, 0, 0, 0.1);
}
.app {
  display: flex;
  flex-direction: row;
  width: 1260px;
}
.app .left_side {
  display: flex;
  flex-direction: column;
  justify-content: start;
  align-items: center;
  width: 15%;
  height: 100vh;
  background-color: rgba(39, 39, 39, 0.9);
}
.app .left_side .change_meal_button {
  width: 100%;
  height: 50px;
  margin: 10px 0;
  border-style: none;
  background-color: rgba(39, 39, 39, 0);
  color: #f5f5f5;
  font-size: 20px;
}
.app .left_side .change_meal_button:hover {
  background-color: rgba(0, 0, 0, 0.1);
}
.app .right_side {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  width: 75%;
}
.app .right_side .roulette {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  width: 300px;
  height: 300px;
}
.app .right_side .roulette .single_roulette {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 98px;
  height: 98px;
  background-color: rgba(0, 0, 0, 0.1);
  border: 1px solid #f5f5f5;
}
.app .right_side .roulette .single_roulette h1 {
  text-align: center;
  font-size: 20px;
}
.app .right_side .roulette .active {
  background-color: rgba(0, 0, 0, 0.8);
}
.app .right_side .start {
  width: 300px;
  height: 100px;
  margin-top: 50px;
  border-style: none;
  border: 1px solid #f5f5f5;
  background-color: rgba(0, 0, 0, 0.1);
  font-size: 50px;
  text-align: center;
}
